Home / 17,911.92-26,865.40-4,765.36

Finding the Fourth Proportional to 17,911.92, 26,865.40 and 4,765.36

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Solution

The fourth proportional to 17,911.92, 26,865.40 and 4,765.36 is: 7,147.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,911.92 : 26,865.40 = 4,765.36 : x
  2. Step 2: Convert to fraction form
    17,911.92/26,865.40 = 4,765.36/x
  3. Step 3: Cross multiply
    17,911.92x = 26,865.40 × 4,765.36
  4. Step 4: Simplify right side
    17,911.92x = 128,023,302.54
  5. Step 5: Solve for x
    x = 128,023,302.54/17,911.92
  6. Step 6: Final answer
    x = 7,147.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.